A couple people who knew Rod said that it is somewhat unusual that this knife was not stamped or signed. There must be a story of why not, but I don't know the story and probably never will.
However they say that this knife was made by Rod Chappel. The item "VINTAGE ROD CHAPPEL CUSTOM KNIFEWITH ORIGINAL SHEATH" is in sale since Saturday, March 23, 2019. This item is in the category "Collectibles\Knives, Swords & Blades\Collectible Fixed Blade Knives\Modern Fixed Blade\Custom & Handmade". The seller is "509alanh" and is located in Newport, Washington. This item can be shipped worldwide.